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Correlated DIO with M Series Devices and SCXI

Hardware: Multifunction DAQ (MIO)>>M Series>>PXI-6221, Multifunction DAQ (MIO)>>M Series>>PCI-6220, Multifunction DAQ (MIO)>>M Series>>PCI-6250, Multifunction DAQ (MIO)>>M Series>>PCI-6224, Multifunction DAQ (MIO)>>M Series>>PCI-6254, Multifunction DAQ (MIO)>>M Series>>PCI-6251, Multifunction DAQ (MIO)>>M Series>>PCI-6229, Multifunction DAQ (MIO)>>M Series>>PCI-6221, Multifunction DAQ (MIO)>>M Series>>PCI-6259, Multifunction DAQ (MIO)>>M Series>>PXI-6284, Multifunction DAQ (MIO)>>M Series>>PXI-6259, Multifunction DAQ (MIO)>>M Series>>PXI-6220, Multifunction DAQ (MIO)>>M Series>>PXI-6281, Multifunction DAQ (MIO)>>M Series>>PXI-6251, Multifunction DAQ (MIO)>>M Series>>PCI-6281, Multifunction DAQ (MIO)>>M Series>>PXI-6229, Multifunction DAQ (MIO)>>M Series>>PXI-6250, Multifunction DAQ (MIO)>>M Series>>PXI-6280, Multifunction DAQ (MIO)>>M Series>>PCI-6280, Multifunction DAQ (MIO)>>M Series>>PCI-6284, Multifunction DAQ (MIO)>>M Series>>PXI-6224, Multifunction DAQ (MIO)>>M Series>>PXI-6289, Multifunction DAQ (MIO)>>M Series>>PXI-6254

Problem: When using M Series devices with SCXI, can I still performed clocked DIO operations on DIO port 0?

Solution: Yes, the DIO lines not used for SCXI communication are available for use.

With PCI devices, Port 0 lines 0,1,2 are used as digital outputs in SCXI communication, and DIO 4 is used as a digital input. Therefore, the remainder of Port 0 can be used for hardware-timed digital input or output. Using an SCXI-1349, you can use a 50 pin cable to access the additional digital lines.

With PXI devices used in a combo chassis to control SCXI through the backplane, a separate SPI port on the STC 2 is used for SCXI communication. Therefore, all DIO lines on Port 0 are available for use via the I/O connector of the M Series device.

Related Links:
KnowledgeBase 3QNGTJSE: Using the Digital I/O Lines on an E or M Series DAQ Board While Controlling an SCXI Chassis
KnowledgeBase 3F7DNTNY: M-Series Breakout Pin Translations for the SCXI-1349 and SCXI-1346

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Report Date: 12/04/2004
Last Updated: 03/31/2006
Document ID: 3G3EJM33

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